Channel access with new radio unlicensed serving cell

Abstract

To provide a method of performing UL channel access with network assistance.SOLUTION: A radio device receives network (NW) assistance information relating to UL channel access procedures, such as channel access types and related listen-before-talk (LBT) techniques, via layer-one signaling or higher-layer signaling. For example, information is provided via DCI, MAC CE or RRC messaging received in a CORESET preceding the configured PRACH resources. Access procedures may be random access procedures, include indication via RAR messaging, and are triggered by a radio access point message, such as a PDCCH order or a handover request.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application is entitled "Channel Access Using New Wireless Unlicensed Serving Cells" This application claims the benefit of U.S. Provisional Application No. 62 / 669,086, filed May 9, 2018, which is incorporated herein by reference in its entirety. the entire contents of which are incorporated herein by reference. [Background technology]

[0002] Machine-to-Machine (M2M), Internet of Things IoT (Internet of Things) and Web of Things (Web of Things) networks The deployment includes M2M / IoT / WoT servers, gateways, M2M / IoT / WoT applications, Such nodes may include devices that host applications and services. Various network deployments include, for example, constrained networks, wireless sensor networks, and wireless Wire mesh networks, mobile ad-hoc networks, and wireless sensors and The operation of devices in such networks may include actuator networks. The operation may comply with standards and proposals such as: 3GPP TS 36.30 0, Overview,;Stage 2,(Release 15),V15.0.0(3GPP TS 36.300, Ove rall Description; Stage 2 (Release 15), V15.0.0), 3GPP TS36.2 13, Physical Layer Procedures (Release 15), V15.0.0 (3GPP TS 36.213, Physical Layer Procedures ayer procedures (Release 15), V15.0.0), 3GPP TS36.211, Physical 3GPP TS 36.211, Physical Channel and Modulation (Release 15), V15.0.0 (3GPP TS 36.211, Physical Channel and Modulation (Release 15) els and Modulation (Release 15), V15.0.0), 3GPP TR38.913, Next A study of scenarios and requirements for,generational access technologies,(Release 14), V14.3. 0(3GPP TR 38.913, Study on Scenarios and Requirements for Next Gener ation Access Technologies; (Release 14), V14.3.0), R1-164013, Framework for Group-Forming Access, Samsung (R1-164013, Framework ework for Beamformed Access, Samsung), 3GPP TS38.300, NR, N R and NG-RAN Overview, Stage 2 (Release 15), V15.1.0 (3GPP TS 38.300, NR; NR and NG-RAN Overall Description; Stage 2 (Release 15), V15.1.0), 3GPP TS38.331, Radio Resource Control (RRC) Protocol Specification (Release 15), V15.1.0 (3GPP TS 38.331, Radio Resource Control ( RRC) protocol specification (Release 15), V15.1.0), 3GPP TS38.2 13, NR, Physical Layer Procedures for Control (Release 15), V15.0.0 (3GPP TS 38 .213, NR; Physical Layer Procedures for Control (Release 15), V15.0.0) ,3GPP TS38.101, Radio Transmission and Reception of User Equipment (UE) (Release 15), V 15.1.0(3GPP TS 38.101, User Equipment (UE) radio transmission and (Release 15) V15.1.0), and 3GPP TS38.211, Physical 3GPP TS 38.211, Physical Channel and Modulation (Release 15), V15.1.0 els and modulation (Release 15), V15.1.0), etc. Summary of the Invention

[0003] A method for performing UL channel access with network assistance includes using For example, NR-U PDCCH command, NR-U RAR grant, NR-U MAC A mechanism for signaling network support information to UEs when performing random access procedures such as RAR. mechanism, a procedure for performing random access using NW assistance information, and FR1 and NR-1000, which uses 60 kHz and 120 kHz subcarrier spacing in unpaired and unpaired spectrum U PRACH configuration. For signaling some parameters of the PRACH configuration. Uses new mechanisms to provide greater flexibility for PRACH transmission occasions It is possible.

[0004] The enhanced Clear Channel Assessment (CCA) procedure allows the UE Serving cell or serving cell scheduler, channel resources, and channels At least one of the access types, e.g., contention-based random access resources or or a transmission type identification code that uniquely identifies a non-contention based random access resource. It can be used.

[0005] This Summary presents a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is provided to identify key or essential features of the claimed subject matter. are not intended to specify, and are not intended to be used to limit the scope of, the claimed subject matter. Moreover, it is not intended that the claimed subject matter be This invention is not limited to limitations that address any or all of the above disadvantages.

[0006] BRIEF DESCRIPTION OF THE DRAWINGS A more detailed understanding may be had from the following description, given by way of example in conjunction with the accompanying drawings, in which: The drawings are not necessarily drawn to scale. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 shows cell coverage with a sector beam and multiple high gain narrow beams. [Diagram 2] FIG. 2 shows an example of a New Radio (NR) random access procedure. [Diagram 3] FIG. 3 is a timing diagram of an example FR1 PRACH configuration index 86 for unpaired spectrum. [Figure 4] FIG. 4 is a block diagram of an example interaction model between L1 and L2 / 3 for a random access procedure. [Diagram 5] FIG. 5 shows an example of bandwidth adaptation. [Figure 6] FIG. 6, for example, is a timing diagram for signaling network assistance information. [Figure 7] Figure 7 is a call flow of an example NR-U random access procedure. [Figure 8] FIG. 8 is an example time schedule of signaling network assistance information for random access preamble transmission. [Figure 9]FIG. 9 is a time schedule of an example of signaling NW assistance information via a PDCCH command. [Figure 10] FIG. 10 is a time schedule of an example signaling of PDCCH orders and preamble transmissions in different COTs. [Figure 11] FIG. 11 is a time schedule of an example signaling for transmission of handover commands and preambles in different COTs. [Figure 12] FIG. 12 shows an example of a MAC RAR with NW support information. [Figure 13] FIG. 13 is a call flow of an example NR-U contention based random access procedure using NW assistance information. [Figure 14] FIG. 14 is a call flow of an example NR-U contention-free random access procedure with NW assistance information signaled by a Random Access (RA) preamble allocation. [Figure 15] FIG. 15 is a call flow of an example NR-U contention-free random access procedure with NW assistance information signaled separately from the RA preamble allocation. [Figure 16] FIG. 16 is a call flow of an example NR-U contention-free random access procedure with NW assistance information signaled separately from the RA preamble assignment (handover). [Figure 17] FIG. 17 is a timing diagram of an example of overlaying LBT with PRACH slots. [Figure 18] FIG. 18 is a timing diagram of an example of a collision between a CCA period and a PRACH transmission occasion. [Figure 19] FIG. 19 is a flow diagram of an example of UE autonomous enhanced CCA. [Figure 20] FIG. 20 is a flow diagram of an example of network-assisted enhanced CCA. [Figure 21] FIG. 21 is a flow diagram of another variation of network-assisted enhanced CCA. [Figure 22]FIG. 22 illustrates one embodiment of an example communication system in which the methods and apparatus described and claimed herein may be implemented. [Diagram 23] FIG. 23 is a block diagram of an example of an apparatus or device configured for wireless communication. [Figure 24] FIG. 24 is a system diagram of an example radio access network (RAN) and core network. [Diagram 25] FIG. 25 is a system diagram of another example of a RAN and a core network. [Figure 26] FIG. 26 is a system diagram of a further example of a RAN and a core network. [Figure 27] FIG. 27 is a block diagram of an exemplary computing system 90 that may embody one or more of the devices of the communications networks shown in FIGS. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Table 1 in the Appendix contains many of the acronyms used in this specification.

[0009] (LTE License Assisted Access) A carrier with at least one Scell ​​operating in unlicensed spectrum The aggregation is called Licensed Assisted Access (LAA). In LAA, the set of serving cells configured for a UE is In the spectrum, it operates according to frame structure type 3, also called LAA SCell. Unless otherwise specified, the LAA SCell is usually It functions as the SCell for the 3GPP TS36.300, Overview, Stage 2 (Release Stage 15), V15.0.0 (3GPP TS 36.300, Overall Description; Stage 2 (R Please refer to elease 15), V15.0.0).

[0010] The LAA eNB and UE must listen before transmitting on the LAA SCell. Apply Talk Before Talk (LBT). When LBT is applied, the transmitter It listens / detects the channel to determine if the channel is free or busy. If it is determined that the state is correct, the transmitter can transmit, otherwise , and does not perform transmission. LAA eNB uses other technologies for LAA channel access. When using channel access signals, the LAA eNB performs maximum energy detection for the LAA. The threshold requirements of TS36.300 can still be met.

[0011] (UL Channel Access Procedure) For UL, the UE shall use Type 1 or Type 2 UL channel access procedure, 3GPP According to TS36.213, Physical Layer Procedures (Release 15), V15.0.0, the LAA It has access to the carrier on which the UL transmission of the SCell is carried out.

[0012] The UE first d The channel is detected as idle during the slot. Type 1 channel after counter N reaches zero in step 4 of the procedure below. The transmission can be sent using the packet access procedure. The counter N is In turn, the channel is adjusted by sensing it for additional slots. 1. N=N init Set N init 0 and CW p Evenly distributed between Go to step 4. 2. If N>0 and the UE chooses to decrement the counter, then N=N Set to -1. 3. Sense the channel for an additional slot period and wait for the additional slot period to become idle. If yes, go to step 4, else go to step 5. 4. If N=0 then stop, else go to step 2. 5. Additional Delay Period T d A busy slot is detected within an additional deferral period T d In The channel is sensed until all slots are detected as idle. 6. Additional Delay Period T d The channel is idle during all slots in If so, proceed to step 4; otherwise, proceed to step 5.

[0013] When an UL UE uses the Type 2 channel access procedure for transmissions including PUSCH, If so, the UE determines that the channel is stable for at least the sensing interval T shоrt_ul = 25us eye A transmission containing a PUSCH can be sent immediately after detecting the T shо rt_ul immediately followed by one slot period T sl = 9us duration T f =From 16us Consists of T f is T f The idle slot period T at the start of sl The channel includes T shоrt_ul If the device is detected as idle during slot period T shоr t_ul is considered to be idle for

[0014] For the solution described herein, the term LBT is used in LTE LAA. UL channel access procedures that are the same or similar to Type 1 and Type 2 UL channel access procedures. This is used to refer to the access procedure.

[0015] (LTE frame structure type 3) Frame structure type 3 is an LAA secondary frame with only a normal cyclic prefix. Each radio frame is of length T f =307200 T s = 10 ms, and the length is T slоt =15360 T s = 0 to 19 in 0.5ms A subframe consists of 20 slots numbered 1 through 2. A subframe consists of two consecutive slots. The subframe i consists of slots i and 2i+1. P See TS36.211, Physical Channels and Modulation (Release 15), V15.0.0 I want to.

[0016] 10 subframes within a radio frame are available for downlink or uplink transmission A downlink transmission occupies one or more consecutive subframes and and is fully occupied or begins anywhere within the The last subframe following one of the DwPTS periods specified in .2-1 (Table 4.2-1) The uplink transmission occupies one or more consecutive subframes.

[0017] (NextGen Network Requirements) 3GPP TR38.913, Study of Scenarios and Requirements for Next Generation Access Technologies ,(Release 14),V14.3.0 includes scenarios and requirements for next-generation access technologies. The KPIs for eMBB, URLLC, and mMTC devices are listed in Table 22. To summarize:

[0018] (NR beamforming access) Currently, to design a framework for beamforming access, 3GPP standardization efforts are underway. The characteristics of the radio channel at higher frequencies are This is significantly different from the sub-6GHz channels that LTE is currently deployed on. The main challenge in designing new radio access technologies (RATs) for the higher frequency bands is The first step would be to overcome the larger path loss at Higher frequencies are subject to unfavorable scattering rings due to blockages caused by diffraction weaknesses. Therefore, to ensure sufficient signal level at the receiver, the MI MO / Beamforming is essential. R1-164013, Beamforming See Samsung's Framework for Access via Digital Assets.

[0019] Digital beamforming (Be) is used to compensate for the additional path loss at higher frequencies. It relies solely on MIMO digital precoding used by the BF (bandforming) is not considered sufficient to provide coverage similar to that of sub-6 GHz. Therefore, the use of analog beamforming to achieve additional gain is Together with digital beamforming, this could be an alternative. The antenna elements must be formed in a way that is quite different from that assumed in the LTE evaluation. If the beamforming gain is large, the beamwidth will be reduced accordingly. As a result, beams with high directional antenna gain tend to be narrower, especially in a three-sector configuration. The number of simultaneous high gain beams is limited by the number of 3000 MHz. These include the cost and complexity of the transceiver architecture.

[0020] From these observations above, narrow serving areas that can be steered to cover different serving areas are Multiple transmissions in the time domain with coverage beams are required. Essentially, sub-area The analog beam of rays is then coordinated with the time resolution of an OFDM symbol or to different servers within a cell. Any suitable time interval unit defined for beam steering over the beaming area. , and can be steered in a single direction, so the number of subarrays is The beam steering is performed every DM symbol or at a time interval defined for beam steering. Determine the number of beam directions and the corresponding coverage. Several papers have Providing multiple narrow coverage beams for a single antenna is called "beam sweeping". In the case of hybrid beamforming, beam sweeping provides basic coverage in NR. This concept is illustrated in Figure 1, where The coverage of the satellite is achieved using a sector beam and multiple high gain narrow beams. In addition, analog and hybrid beamforming with massive MIMO is being developed. In the case of LTE, in order to cover the entire coverage area in the serving cell in NR, With narrow coverage beams that are steered to cover different serving areas Multiple transmissions in the intervening regions are essential.

[0021] A concept closely related to beam sweeping is that of beam pairing. Signaling is a set of information between the UE and its serving center that can be used for control signaling or data transmission. For downlink transmission, the beam A pair consists of a UE RX beam and an NR node TX beam. For uplink transmission, ,A beam pair consists of a UE TX beam and an NR node RX beam.

[0022] Another related concept is that of beam training, which is used for beam fine-tuning. For example, during the beam sweeping and sector beam pairing procedure, as shown in Figure 1, Coarser sector beamforming may be applied. Then, beam training follows. For example, the antenna weight vectors are fine-tuned, followed by high gain between the UE and the NR node. Narrow beam pairing can be performed in

[0023] (NR Random Access Procedure) The random access procedure can be triggered by several events, such as: will be done. - Initial access from RRC idle (RRC_IDLE). · RRC connection re-establishment procedure. Handover. - When the UL synchronization state is "asynchronous", the DL or or UL data incoming. · Transition from RRC Inactive (RRC_INACTIVE). · Requests for other SIs. -Beam damage recovery.

[0024] 3GPP TS38.300, NR, NR and NG-RAN Overview, Stage 2 (Release Please refer to RFC 1506, Version 15.1.0.

[0025] Furthermore, the random access procedure can be divided into contention-based and contention-free, as shown in Fig. 2. This takes two different forms. Normal DL / UL transmission takes place after a random access procedure. This can be done.

[0026] In case of initial access in a cell configured with SUL, the UE shall Select the SUL carrier only if the is lower than the broadcast threshold. All uplink transmissions of the system access procedure, once initiated, remain on the selected carrier. .

[0027] (Random access configuration) RACH-ConfigGenericI for both normal random access and beam failure recovery E is used to specify cell-specific random access parameters. 8.331, Radio Resource Control (RRC) Protocol Specification (Release 15), V15.1 This IE contains the prach-Configurator element that specifies the PRACH configuration in use. 3 illustrates an embodiment of the solution described herein. The FR of the unpaired spectrum corresponding to the PRACH configuration index 86 is used to 1 is a diagram of the PRACH configuration.

[0028] (Interaction model between L1 and L2 / 3 for random access procedures) The above random access procedure is shown in Figure 4 below from the perspective of L1 and L2 / 3 interaction. L2 / L3 is modeled as an instruction to L1 to send a random access preamble. After this, an indication is sent from L1 whether an ACK was received or a DTX was detected. L2 / 3 receives the first scheduled UL transmission (initial access) if necessary. RRC connection request in case of random access process, or Instruct L1 to transmit a preamble.

[0029] (NR Bandwidth Adaption) With Bandwidth Adaptation (BA), the UE's receiving and transmitting bandwidth is comparable to the cell's bandwidth. It does not have to be very large, but can be adjusted. That is, the width can be changed (e.g., You can instruct the device to shrink during periods of low activity to conserve power, and the location can be set to frequency can be moved around in the area (e.g., to allow for more scheduling flexibility), and to vary the spacing of subcarriers (e.g., to enable different services) A subset of the total cell bandwidth of a cell is called a Bandwidth Part (BWP). It is called to configure the UE with BWPs and to determine which of the configured BWPs are currently active. BA is realized by informing the UE whether it is ,See Physical Layer Procedures for Control (Release 15), V15.0.0.

[0030] Figure 5 illustrates a scenario in which three different BWPs are configured. · BWP1 with a width of 40 MHz and subcarrier spacing of 15 kHz. · BWP2 with a width of 10 MHz and subcarrier spacing of 15 kHz. · BWP3 with a width of 20 MHz and subcarrier spacing of 60 kHz.

[0031] A serving cell can consist of up to four BWPs, and the activated serving For a serving cell, there is always one active BWP at any given time. The BWP switching of a cell is performed by activating an inactive BWP and It is used to deactivate an active BWP and is not used for downlink allocation or uplink allocation. It is controlled by the PDCCH which indicates the grant of the link. When an SCell is activated, a downlink assignment or an uplink grant is issued. One BWP is initially active without receiving a PDCCH indicating a service. The active BWP of the unpaired cell is indicated by RRC or PDCCH. In the case of a converter, the DL BWP is paired with the UL BWP, and the BWP switching is L is common to both (TS38.213).

[0032] (assignment) The UE must perform a listen-before-talk (LBT) period before transmitting on the NR-U serving cell. When LBT is applied, the UE performs clear channel assessment (CCA). The channel is determined to be free or busy by If so, the UE may transmit, otherwise the UE shall not transmit.

[0033] The multiplexing technique used (e.g., Code Division Multiplexing (CDM), Frequency Division Multiplexing ( Frequency Division Duplex (FDM), Time Division Duplex (TDM) Even if it is possible to do so, neighboring UEs (e.g., PUSCH, PUCCH, S If a transmission from a RS, RACH, etc. overlaps with a CCA period, LBT may fail.

[0034] For example, a random access design allows multiple UEs (up to 64) to transmit PRACH. This allows multiple PRACHs to share the same PRACH resource during a single transmission occasion. If a neighboring UE's transmission overlaps with the CCA period, the channel is considered "busy" and cannot be used. The multiplexing techniques used allow transmissions to be carried out without causing interference to adjacent UEs. Therefore, even if the UE is to start transmitting preambles, The dumb access procedure is extended to allow UL from neighboring UEs to receive preambles from the UE. It is necessary to ensure that the following scenarios are possible:

[0035] Scenario 1: Contention-based preambles from other users on the channel from the same cell Due to the transmission, it is possible that the LBT will fail.

[0036] Scenario 2: Non-contention based preamble by other users on the channel from the same cell Due to the nature of the message transmission, LBT may fail.

[0037] Scenario 3: For example, PUSCH, PUC by other users on the channel from the same cell There is a possibility that LBT may fail due to other UL transmissions such as CH, SRS, etc.

[0038] Scenario 4: For example, Wi-Fi users or users in the same or different PLMNs LBT fails due to transmissions by other users of the channel, such as users from other cells. There is a possibility.

[0039] Due to the above possible scenarios, the UE does not postpone transmission in scenarios 1, 2 and 3. In order to ensure that the transmission in scenario 4 is postponed, the UE may set scenario 4 as a separate scenario. For example, the UE must be able to distinguish between the video and the Wi-Fi transmissions that result from the A channel in the uninterrupted state is a security channel such as PUSCH, PUCCH, SRS, or RACH. It must be possible to distinguish a busy channel from a busy channel as a result of regular data transmission. It is necessary to investigate methods for implementing such a distinction.

[0040] (UL channel access with network assistance) As discussed in the Problems section of this document, they are under the control of the same scheduler and given Transmissions from neighboring UEs that are intended to be multiplexed with the UL transmissions of the selected UE (e.g., P If the transmission of USCH, PUCCH, SRS, RACH, etc. overlaps with the CCA period, Channel access procedures performed by E, such as LBT, may fail. To address this issue, the gNB can implement a channel allocation scheme that can be performed before performing an UL transmission. Used by the UE to determine and / or adapt the network access procedure. The UE may be provided with the network assistance information obtained by the UE.

[0041] The UE that has received the network assistance information then performs the LBT procedure before performing an UL transmission. or a different set of configuration parameters for the LBT procedure, e.g. For example, different energy detection thresholds (X Thresh ), detection interval / delay period (T d ), Conte Concurrent window (CW) size, etc. may be used.

[0042] The NW assistance information is, at least in part, a result of the LBT procedure performed by the gNB; Or, upcoming transmissions from adjacent UEs under the control of the same scheduler and two When there is coordination between schedulers, the neighboring UEs under the control of different schedulers and / or an upcoming transmission of the.

[0043] The network assistance information includes channel access type and channel access priority class. The channel access information may include at least one of the following: The access information specifies the type of UL channel access procedure and a set of configuration parameters that may be used. For example, the channel access type may be used by the UE to determine It can be used to adapt the LBT procedure based on the radio environment and to prioritize channel access. The degree classes are used to provide QoS differentiation when performing the UL channel access procedure. The network assistance information includes the parameters used when performing the LBT procedure. Explicit value of the meter, e.g., Energy Detection Threshold (X Thresh ), detection interval / deferral period Between (T d ), contention window (CW) size, etc. The values ​​used for the specified channel access type are semi-statically configured or predefined as per the standard. It can be done.

[0044] The following are exemplary channel access types and corresponding UL channels that may be defined: This is a list of access procedures. · Type 1: LBT with random backoff using a default configuration set. Type 2: LBT with no random backoff using the default configuration set. Type 3: For the default configuration set, e.g. higher X Thresh or shorter Knowledge interval / postponement period (T d) and so on. No LBT. Type 4: No LBT.

[0045] For NR-U, the UE behavior for type 1 and type 2 channel access types is as follows: Same or similar behavior as defined for Type 1 and Type 2 LAA channel access It can be defined as:

[0046] Type 3 channel access behavior is more aggressive in accessing channels. For example, the detection interval T short_ul is a single time slot period T sl = 9 can be defined to consist of us, and energy detection X thresh is the value used for type 2 The channel may be set to a high value compared to the sensing interval T shоrt_ul X in thres h If it is detected to be below T shоrt_ul is considered idle for will be done.

[0047] Type 4 behavior is such that the UE performs transmission immediately without performing LBT. could be.

[0048] Additional channel access types can be defined as needed.

[0049] Alternatively, the network assistance information may allow the UE to forgo performing the LBT procedure. This may consist of a clear to send (CTS) that may be used to indicate whether or not a

[0050] When the UE performs its channel access procedure, e.g., LBT, the NW assistance information To ensure that the information is valid, DL transmissions should be used to transmit network assistance information. The UL transmissions performed by the UE can be transmitted over the same channel, as shown in Figure 6. Occurs during a certain time (COT).

[0051] The network assistance information may be, for example, a transmission period and a transmission opportunity or occurrence within the time. The resource allocation information may include frequency resource allocation. Based on this information, the UE can determine when users in the same serving cell are transmitting. The UE knows when it is transmitting and when it is not. The UE decides whether to postpone its transmission. For example, the UE may use this information to determine whether to Clear Channel Assessment (CCA) capture for detection and decoding of cell channel signals The UE may not perform the re-sensing function. In this case, if the LBT result indicates the channel is busy, Within the serving cell, within a non-serving cellular RAT, or in a non-cellular system such as WiFi The channel is busy as a result of transmissions from channel-sharing users in the system. E may postpone its transmission.

[0052] Network-assisted access information may be provided via L1 signaling (e.g., DCI) or higher layers. Signaling to the UE via signaling (e.g. MAC CE, RRC messages) Transmission of network assistance information may be by dedicated, group-based or broadcast methods. Further, assistance information may be transmitted using DCI signaling. If configured in the UE, the UE in the serving cell shall use the group PDCCH to The address can be specified.

[0053] (Random Access) The NR-U serving cell can be a SCell, a PSCell, or a may be configured as a PCell.

[0054] Carrier aggregation between licensed band NR (PCell) and NR-U (SCell) In the case of CA, random access is enabled for the following events: It can be implemented using Cell. To establish time consistency with NR-U SCell. -Beam hazard recovery.

[0055] Dual-conference between licensed band LTE (PCell) and NR-U (PSCell) In the case of connectivity (DC), random access is disabled due to the following events: This can be done using a PSCell. -SCG additions / changes. UL / DL data when UL is "unsynchronized" or there are no PUCCH resources Incoming call. When UL is "asynchronous", RA on the NR-U PSCell is The NR-U SCell of the CH or SCG is triggered. When UL is "unsynchronized" or there are no PUCCH resources, UL data arrival This triggers the RACH on the NR-U PSCell. -Beam hazard recovery.

[0056] For Standalone (SA) NR-U, random access is enabled for the following events: The service can be performed using an NR-USA cell. Early access, - Re-establishing the RRC connection, Handover, UL / DL data when UL is "unsynchronized" or there are no PUCCH resources Incoming call, Transition from RRC inactivity, Requests for other SIs, or -Beam hazard recovery.

[0057] When random access is performed using an NR-U serving cell, Each step of the procedure is performed by a transmitting node, e.g., a channel access procedure such as LBT. , may need to be performed as shown in FIG.

[0058] To prevent a UE from postponing transmissions from neighboring UEs that overlap with a CCA period, the gNB is a channel access procedure that may be performed before transmitting the random access preamble. The assistance information used by the UE to perform at least one of the determination and adaptation is It may be provided to E.

[0059] (Signaling mechanism for signaling network assistance information) When the UE performs its channel access procedure, e.g., LBT, the NW assistance information To ensure that the information is valid, DL transmission can be used to transmit NW assistance information. The random access preamble transmission occurs during the same COT, as shown in Figure 8. do.

[0060] NW-assisted access information can be provided through dedicated, group-based, or broadcast signaling. L1 signaling (e.g., DCI) or higher layer signaling that may be transmitted using the The UE may be signaled via a message (e.g., MAC CE, RRC message).

[0061] Table 3 shows an example of a DCI format that can be used to signal NW assistance information. The DCI is the C-RNTI or the Network Assisted RNTI (NA-RNTI). The NA-RNTI can be scrambled by the NTI (new RNTI) for the existing RNTI value. Each is assigned a unique value, for example, 0xFFFD.

[0062] In this example, the NW assistance information may be performed before the transmission of the random access preamble. The channel access type field is used to indicate the type of channel access procedure to be performed. The channel access type field consists of a value of 0 corresponding to type 1, a value of The access types can be defined such that type 1 corresponds to type 2, and so on, and the access types can be It may be predefined according to an exemplary channel access type.

[0063] The DCI format determines the channel based on the QoS of the service associated with the trigger event. Channel access priority classes, etc. that may be used to adapt the channel access procedure. It can be expanded to include additional fields.

[0064] The network assistance information is transmitted via a group-common PDCCH scrambled by the NA-RNTI. Alternatively, for example, the UE may perform a contention-free random access procedure. In this case, the NW assistance information is sent by the C-RNTI for UE-specific indication. It may be transmitted using a scrambled DCI format.

[0065] This DCI may be transmitted in the CORESET preceding the PRACH resource. is the number of times for the Type 0-PDCCH common search space or the Type 1-PDCCH common search space. Alternatively, this may be the same as the CORESET that is specified in the A different CORESET configured by higher layer parameters such as reset-configuration may be also possible.

[0066] The UE may, for example, use the common search space ( For example, Type 0-PDCCH common search space, Type 1-PDCCH common search space) or may monitor NW assistance information in a UE-specific search space. The UE may also, for example, NW-assisted search space that can be configured by higher layer parameters such as ssistance-SearchSpace The device may be configured to monitor.

[0067] UEs configured to monitor this DCI shall transmit a random access preamble. determining and / or adapting a channel access procedure that may be performed before The network assistant detects network assistance information that will be used later to

[0068] Network assistance information DCI is not received by the UE, but SSB, CSI-RS, Either the group-common PDCCH or other PDCCHs in the common search space are sent by the UE. If detected on DL, the detected SSB, CSI-RS, and group-common PDCCH or other PDCCH may be used as an implicit indication from the gNB during COT. In this case, the UE is either configured for the channel access procedure or is in the fallback The network assistance information DCI can also be used. Any DL signal (e.g., SSB or CSI-RS) or PDCCH may also be used depending on the channel state, e.g. If the UE is not detected due to poor signal quality or DL ​​LBT failure, the UE will use the default channel address. For example, we can use type 1 as described here. By using the IEEE 802.11b / g / n ... Alternatively, if the network assistance information DCI is not received, the UE may It is possible to "omit" the transmission of chromatic aberrations.

[0069] When performing a network-triggered random access procedure, the gNB The event that triggered the access procedure, e.g. DL data arrival, handover, etc. In response, NW support information is sent to the UE to add NR-U SCell and SCG. In these scenarios, random A message used to transmit the PRACH access preamble and a corresponding PRACH transmitter If the meeting occurs during the same COT, the message used to trigger the random access procedure NW assistance information can be signaled in the message.

[0070] FIG. 9 shows the random access procedure in which the gNB transmits a PDCCH command including network assistance information. FIG. 13 is a diagram of a time schedule of scenarios triggered using commands.

[0071] Table 8 shows NR-U PDCCH commands that can be used to signal network assistance information. In this example, the NW assistance information is a random access preamble. A channel access procedure that may be performed before the transmission of The channel access type field consists of the value You can define the access type so that 0 corresponds to type 1, value 1 corresponds to type 2, and so on. The groups may be predefined according to the exemplary channel access types described herein. Cut.

[0072] The NR-U PDCCH command is based on the QoS of the service associated with the trigger event. Channel access priority classes that may be used to adapt the channel access procedure It may be expanded to include additional fields such as

[0073] Alternatively, the NW assistance information may be a message used to trigger a random access procedure. This allows random access to be signaled in a different message than the ACK message. Messages used to trigger procedures and to provide NW assistance information The messages that are sent can be sent during different COTs.

[0074] Figure 10 shows the PDCCH command used to trigger the random access procedure. O.T. x During COT, network support information is sent. y A diagram of the scenario transmitted during CO T x and COT y may or may not be consecutive.

[0075] Figure 11 shows the handover command used to trigger the random access procedure. The lands are COT x Sent by the source gNB during COT, NW assistance information is y Target in FIG. 1 is a diagram of a scenario in which a LTE gNB transmits a LTE-GNB signal.

[0076] The RAR signaled during the random access procedure described herein is RAR U A channel access procedure that may be performed before a UL transmission scheduled by an L grant. Network assistance information used by the UE to perform at least one of the determination and adaptation It may also include.

[0077] For example, the NW support information may be included as a field in the RAR UL authorization. Example of NR-U RAR UL authorization that can be used to signal network assistance information In this example, the NW assistance information is executed before the scheduled UL transmission. A channel access type is used to indicate the type of channel access procedure that may be performed. The Channel Access Type field consists of the following fields: The access types can be defined as follows: type 1 corresponds to type 2, value 3 corresponds to type 4, and so on. The channel access types may be predefined according to the exemplary channel access types described in the document.

[0078] The NR-U RAR UL Certification is a UL transmission scheduled by the RAR UL Certification. A channel access protocol that can be used to adapt the channel access procedure based on the QoS of the communication. It may be expanded to include additional fields such as access priority class.

[0079] Alternatively, the NW assistance information may be signaled as a field in the MAC payload of the RAR. An exemplary MAC RA that can be used to signal NW assistance information can be R is shown in Figure 12. In this example, the NW assistance information consists of channel access types. The fields of the MAC RAR can be defined as follows: · R: Reserved bit, set to "0". Channel Access Type: The Channel Access Type field is used to This bit indicates the type of channel access procedure that may be performed before a UL transmission. In the channel access type field, a value of 0 corresponds to type 1, a value of 1 corresponds to type 2, etc., and the access type can be defined as the exemplary channel access type described herein. The process can be predefined according to the process type. Timing Advance Command: The Timing Advance Command field is Controls the amount of timing adjustment that a C entity must apply in TS38.213. The index value T used to A Timing Advance Command Fee The size of the field is 12 bits. UL Certification: The uplink certification field specifies the uplink certification in TS38.213. Indicates the resource that should be used. The size of the UL authorization field is 25 bits. Temporary C-RNTI: The temporary C-RNTI field is used during random access Indicates the temporary identity used by the C entity. The size of is 16 bits.

[0080] MAC RAR with NW support information is scheduled by RAR UL authorization A channel access procedure that may be used to adapt the channel access procedure based on the QoS of the UL transmission. It may be extended to include additional fields such as the kernel access priority class.

[0081] The random access preamble and the UL transmission scheduled via the RAR For scenarios occurring during the same COT, before sending the random access preamble The NW assistance information used to determine / adapt the channel access procedure that may be performed is RAR may be executed prior to executing any UL transmission scheduled by the UL authorization. It may also be used to determine / adapt the channel access procedure that is used.

[0082] (Random access using network support information) FIG. 13 shows the schematic for the NR-U contention based random access procedure with network assistance information. In this example, as shown in FIG. 8, NW support information and random access The transmission of the preamble occurs during the same COT. The transmission of the remaining messages occurs during this COT. It can occur during T or during different COTs.

[0083] Figure 14 shows the signaling for the NR-U contention-free random access procedure using network assistance information. In this figure, the NW assistance information and RA preamble allocation are In this example, the PDCCH command and the Random Access Control (RAN) command are signaled as shown in Figure 9. The transmission of network assistance information via dumb access preambles occurs during the same COT. The transmission of the random access response is performed in conjunction with the transmission of the PDCCH command and the random access preamble. They may occur during the same COT or different COTs.

[0084] Figure 15 shows the signaling for the NR-U contention-free random access procedure using network assistance information. FIG. 1 is a diagram of a PDCCH signaling scheme where the RA preamble allocation is signaled via a PDCCH command. In this example, the NW assistance information is signaled separately as shown in Figure 10. In addition, the transmission of the network assistance information and the random access preamble occurs during the same COT. The transmission of the RA preamble allocation via the PDCCH order occurs during a different COT. The transmission of RAR is performed in the same COT as the transmission of NW assistance information and random access preamble. They may occur during one COT or during different COTs.

[0085] Figure 16 shows the signaling for the NR-U contention-free random access procedure using network assistance information. FIG. 1 is a diagram of the handover process where the RA preamble allocation is The information is signaled via the UE and the network assistance information is signaled separately.

[0086] In this example, as shown in Figure 11, the transmission of network assistance information and random access preambles is performed. The transmission of the RA preamble assignment occurs during a different COT. The transmission of the RAR is the same as the transmission of the network assistance information and the random access preamble. They may occur during the same COT or different COTs.

[0087] (NR-U random access configuration) In NR, there are two frequency ranges, FR1 and FR2, as defined in Table 8. 3GPP TS38.101, Radio Transmission and Reception of User Equipment (UE) (Release 1 5) Please refer to V15.1.0.

[0088] For PRACH in NR, 1.25, 5, 15, and 30 kHz for FR1 subcarrier spacing is used, with 60 and 120 kHz used for FR2.

[0089] The time position and duration of the LBT can be selected more flexibly, and the PRACH resources are This allows for more efficient use of the NR-U in FR1 at 60 kHz and 1 It would be beneficial to introduce a subcarrier spacing of 20 kHz. Using 60 kHz subcarrier spacing for the preamble, the PRACH transmission occasion The number of symbols available for each SF (1 ms) can be large. For the sake of example, let's assume that the LBT period is six 60 kHz symbols. Assuming that the OFDM symbol is used, only 12 out of 14 symbols (85.7%) are PRAC Compared to the case of 15 kHz subcarrier spacing, which cannot be used for H transmission occasions, e.g. For example, 50 out of 56 symbols (89.3%) are available for PRACH transmission occasions. It is Noh.

[0090] Support for 60 and 120 kHz RACH configurations for NR-U in FR1 , 3GPP TS38.211, Physical Channels and Modulation (Release 15), V15.1.0 Use an existing RACH configuration table defined in or use the same RACH-ConfigGen This can be done by using ericIE, see TS38.331.

[0091] By introducing a separate RACH configuration table for NR-U, For this reason, a more flexible RACH configuration can be used.

[0092] An example is shown in Table 7. In this example, the columns in the RACH configuration table defined for NR are The "Number of PRACH slots in a subframe" has been deleted. In Code Example 1, the column Instead, the information listed in has been moved to RACH-ConfigGenericIE. This provides a more flexible configuration for the PRACH transmission occasions.

[0093] A second example is shown in Table 8. In this example, in the RACH configuration table defined for NR, columns ("Start symbol" and "Number of PRACH slots in subframe") are deleted. In Code Example 2, the information listed in these two columns is instead listed in RACH-ConfigG These changes have resulted in the PRACH transmission occasions being moved to the energicIE. This allows for a more flexible configuration.

[0094] Some configurations of LBT (duration and time position) and configured PRACH transmission In some cases, a collision may occur. In that case, the UE's behavior is to This may result in PRACH transmission occasions that collide with the 18th PRACH transmission occasion being considered invalid. In this diagram, PRACH transmission occasion 0 would be invalid. Only PRACH transmission occasion 1 and PRACH transmission occasion 2 remain valid.

[0095] (Extended CCA) An extended CCA using a transmission type identification code can be used. The code is the UE serving cell or serving cell scheduler, channel resources, And, for example, contention-based random access resources or non-contention-based random access resources. A code or set of codes that uniquely identifies a channel access type for an access resource. It is a combination.

[0096] At the beginning of a PRACH transmission opportunity, each U intending to perform a random access procedure E is a short period of time interval before transmitting the actual PRACH preamble. The PRACH transmission type identification signal is repeatedly transmitted. Similarly, the random access procedure is Each UE intending to perform this shall transmit a PRACH preamplifier at the beginning of a PRACH transmission opportunity. for a short period of time, e.g., the same short period of time as the transmission of the transmission type identification signal, before transmitting the The UE monitors the channel for transmission type identification signals from other users over a period of time. its own knowledge of the signal type identification signal, or the transmission period and Using its knowledge of the occurrence of transmissions in time, it decides whether to yield to other users of the channel. The committee will make a decision on whether to

[0097] The extended CCA procedure can be summarized as follows: 19, 20, and 21.

[0098] Assumption: At the beginning of a PRACH transmission opportunity, it is intended to perform a random access procedure. Each UE that receives the PRACH preamble transmits it for a short time interval before transmitting the actual PRACH preamble. The call type identification signal is repeatedly transmitted.

[0099] (Carrier Sensing) A UE intending to transmit a PRACH shall transmit the PRACH for a short period of time prior to the actual transmission of the PRACH. During carrier sensing, the UE detects the channel Detect and decode transmission type identification signals or codes transmitted by other users of the The transmission type identification signal or code determines whether the PRACH transmission is a contention-based PRACH transmission or a non-contention-based If a PRACH transmission is detected, the UE may not postpone. If the identification indicates that the UE may defer, the channel is considered busy and the associated The PRACH may be held busy for the duration of a transmission period that corresponds to a PRACH transmission opportunity. It is possible.

[0100] (Energy Detection (ED)) The energy detection here is based on the noise floor, ambient energy, interferers, and corrupted Based on unacknowledged non-serving cell transmissions that may be in use and are no longer decoded, on the same channel (e.g., from the same PLMN, a different PLMN, or WiFi) Refers to the ability of the UE to detect non-serving cell energy levels. The threshold is set based on the serving cell signal, non-serving cell signal (e.g., of the same PLMN or a different PLMN). For example, a UE may receive a serving cell signal, or a non-cellular signal, or a WiFi signal. The UE may receive non-serving cell signals or other non-cellular signals. Using a predefined ED threshold for The CPU determines whether the channel is high enough to be considered busy or idle.

[0101] The UE may select contention-based PRACH transmission or or does not detect a transmission identification signal or code indicative of a non-contention based PRACH transmission; and The UE may detect non-serving cell EDs present on the channel as part of the ED function of CCA. If the UE detects a non-serving energy level higher than the threshold, it determines that the channel It may consider itself busy during the relevant period and postpone it.

[0102] The enhanced CCA may be network assisted or UE autonomous enhanced.

[0103] For example, in a network-assisted scheme, the assistance information is provided by, for example, a contention-based random One or more transmissions on the access resource or non-contention based random access resource The assistance information may include a type identification code. cast signaling or groupcast signaling) or RRC dedicated signaling The assistance information may be configured in the UE via DCI signaling. In addition, a group PDCCH can be used to determine the serving cell of the UE. can be addressed.

[0104] In the case of the UE autonomous based enhanced CCA method, the transmission type identification signal or code is stored in the UE. The parameters may be preconfigured in or defined in a specification.

[0105] In the example of FIG. 19, in step 1, the UE receives a predefined transmission type identification code. Predefined transmission type identification codes can be, for example, preconfigured, provisioned, or may have been provided to the UE via the specification.

[0106] In step 2, the UE determines whether it is, for example, a PRACH that the UE intends to transmit. Checks if this is the start of a new sending opportunity, such as an occasion. In this case, the UE can perform other tasks before checking again for a new transmission opportunity. Cut.

[0107] If, in step 2, this is the start of a new transmission opportunity, then in step 3 the UE Repeatedly transmit a different type code.

[0108] Step 4 is Clear Channel Assessment (CCA) Energy Detection (ED). The UE , listen to its own channel and transmit energy above the non-serving cell ED threshold. The non-serving cell users having the same level are detected.

[0109] If an eligible non-serving cell user is found in step 4, then in step 5 the UE , declare the channel busy, postpone transmission, and return to step 1.

[0110] If no eligible non-serving cell user is found in step 4, then in step 6, the UE The UE performs CCA carrier sensing to obtain the information from the channel-sharing users of the serving cell. Detect and decode different transmission type identification codes from the UE's serving cell channel Upon detecting and decoding the different transmission type identification code from the shared user, the UE performs the steps Return to P1.

[0111] In step 6, if the UE does not detect and decode the different transmission type identification code, In step 7, the UE determines that the channel is idle and, for example, Continue transmission with amble transmission.

[0112] The operation in the example of FIG. 20 is similar to that in FIG. 19. However, in the example of FIG. ,In step 1, the RRC configures the UE with one or more ,transmission type identification codes. The operations in steps 2 to 7 are similar to those in the example of FIG.

[0113] In the example of FIG. 21, in step 1, the RRC receives one or more transmission type identification codes and and configures the UE with future resource reservations in the serving cell.

[0114] In step 2 of FIG. 21, the UE determines whether it is, for example, a P Checks if it is the beginning of a new transmission opportunity, such as a RACH occasion. If not, the UE may perform other tasks before checking again for a new transmission opportunity. It is possible.

[0115] If, in step 2, this is the start of a new transmission opportunity, then in step 3 the UE Repeatedly transmit a different type code.

[0116] Step 4 is Clear Channel Assessment (CCA) Energy Detection (ED). The UE , listen to its own channel and transmit energy above the non-serving cell ED threshold. The non-serving cell users having the same level are detected.

[0117] If an eligible non-serving cell user is found in step 4, then in step 5 the UE , declare the channel busy, postpone transmission, and return to step 1.

[0118] If no eligible non-serving cell user is found in step 4, then in step 8, the UE During the period, the UE checks whether there is a user sharing the channel of the serving cell to transmit. Click.

[0119] In step 8, if there is no channel sharing user of the serving cell to transmit during the period, If so, in step 9, the UE declares the channel to be idle and Continue transmission such as CH preamble transmission.

[0120] In step 8, if there are channel sharing users of the serving cell who transmit during the period In step 6, the UE performs CCA carrier sensing to detect the Detect and decode different transmission type identification codes from the channel sharing users. 6, different transmission type identification codes from channel sharing users of the serving cell of the UE are If not detected and decoded, the UE determines that the channel is idle, and The UE continues transmission, e.g., PRACH preamble transmission. Otherwise , the UE declares the channel to be busy and returns to step 1.

[0121] The Third Generation Partnership Project (3GPP) is a Support network and codec, security and quality of service Develop technical standards for cellular communications network technology, including service capabilities, including efforts to Recent Radio Access Technology (RAT) standards include Wideband Code Division Multiple Access (WCA). Code Division Multiple Access (WCDMA) (commonly known as 3G) LTE (commonly referred to as 4G), and LTE-Advanced standards. 3GPP is working on a next-generation cell technology called New Radio (NR), also known as "5G." The development of the 3GPP NR standard involves the development of next-generation wireless access This is expected to include the definition of new RATs, including new sub-6GHz Provision for flexible wireless access and new ultra-mobile broadcast networks above 6GHz The draft is expected to include provisions for broadband wireless access. Flexible wireless access is It consists of new, backwards-incompatible radio access in new spectrum below 6 GHz. is expected to grow to 100 million by 2025, to address a wide range of 3GPP NR use cases with diverse requirements. It is expected to include different operating modes that can be multiplexed within the same spectrum. IlBroadband is an ultra-mobile broadband solution for indoor use and hotspots, for example. It is expected to include centimeter-wave and millimeter-wave spectrum, which will provide broadband access opportunities. In particular, ultra-mobile broadband requires design optimization specific to centimeter and millimeter waves. Sharing a common design framework with optimizations for sub-6 GHz flexible wireless access It is expected.

[0122] 3GPP has identified various use cases that it expects NR to support, and as a result , and diverse user experience requirements for data transfer speed, latency and mobility. The use cases include the following general categories: Broadband (e.g. broadband access in dense areas, indoor ultra-high Broadband access in crowded areas, 50Mbps or more everywhere , Ultra-low-cost broadband access, In-vehicle mobile broadband), Critical Communication communication, large-scale machine-type communication, network operations (e.g., network slash issuance, routing, migration and interworking, and energy conservation ), and Enhanced Vehicle-to-Everything: Specific services and applications within these categories include: Some examples are monitoring and sensor networks, remote control of devices, two-way remote control, Remote control, personal cloud computing, video streaming, wireless cloud Connectivity to base offices, first responders, eCall for automobiles, disaster alerts, Real-time games, multi-party video calls, autonomous driving, augmented reality, touch internet, Virtual reality, etc. This specification contemplates all of these use cases and more. is doing.

[0123] FIG. 22 is a diagram of a communication system that may embody the methods and apparatus described and claimed herein. 1 illustrates an embodiment of an example communication system 100. As shown, the example communication system 100 includes a wireless Wireless Transmit / Receive Units (WTRUs) 102a, 102b, At least one of 102c and 102d (collectively, WT RU 102) and Radio Access Network (RAN) 103 / 1 04 / 105 / 103b / 104b / 105b and core network 106 / 107 / 1 09 and Public Switched Telephone Network (PSTN) 108 and , the Internet 110, and other networks 112, although the disclosed implementations The topology may include any number of WTRUs, base stations, networks, and network elements. It will be appreciated that the WTRUs 102a, 102b, 102c, 102d, Each of the above-mentioned components may be any type of device or device configured to operate or communicate in a wireless environment. may be devices. Each of the above is illustrated in FIGS. 22 to 26 as a handheld wireless communication device, but is not limited to 5G wireless. Given the variety of use cases for communications, each WTRU may, by way of example only, User Equipment (UE), Mobile Station, Fixed or Mobile Subscriber Unit, Radio Paging Device, Mobile phones, personal digital assistants (PDAs), smartphones, Laptops, tablets, netbooks, notebook computers, personal computers computers, wireless sensors, home appliances, smart watches and smart clothing, etc. wearable devices, medical and eHealth devices, robots, industrial equipment, drones, vehicles, including automobiles, trucks, trains, aircraft, and other vehicles that transmit or transmit radio signals. Including or embodied in any apparatus or device configured to receive It is understood that this may also be done.

[0124] The communications system 100 may further include a base station 114a and a base station 114b. The base station 114a is in wireless communication with at least one of the WTRUs 102a, 102b, and 102c. Wire interfaces to the core network 106 / 107 / 109 and the Internet 110 and / or other networks 112. The base station 114b may be any type of device configured to facilitate Remote Radio Heads (RRH) 118a, 118b and transmitting / receiving points Among the Transmission and Reception Points (TRP) 119a and 119b, At least one of the core networks 106 / 107 / 108 is connected to the core network 106 / 107 / 108 via wired or wireless interfaces. 109, the Internet 110, or other networks 112. The device may be any type of device configured to facilitate access to a network. The RRHs 118a and 118b wirelessly interface with at least one of the WTRUs 102c. In this way, the core network 106 / 107 / 109, the Internet 110, and other To facilitate access to one or more communication networks, such as other networks 112 The TRPs 119a and 119b may be any type of device configured to 10. The core network 10 6 / 107 / 109, Internet 110, and other networks 112 Any type of device configured to facilitate access to a communications network on As an example, the base stations 114a, 114b may be base transceiver stations. (Base Transceiver Station: BTS), Node B, eNode B, Home Node B, eNodeB, Site Controller, Access Point (AP), Wireless Each of the base stations 114a, 114b is shown as a single element. Although illustrated, base stations 114a, 114b may be any number of interconnected base stations or networks. It will be appreciated that the present invention may include a call element.

[0125] The base station 114a may be part of the RAN 103 / 104 / 105, and the RAN 103 / 104 / 105 also acts as a Base Station Controller (BSC ), Radio Network Controller (RNC), Relay Node The base station 114b may include other base stations and network elements (not shown), such as a It may be part of RAN 103b / 104b / 105b, and RAN 103b / 104b / 105b also includes base station controllers (BSCs), radio network controllers ( RNC), relay nodes, and other base stations and network elements (not shown). The base station 114a provides wireless access within a particular geographic area, sometimes referred to as a cell (not shown). The base station 114b may be configured to transmit and receive signals. A wireless LAN may be configured to transmit and receive wired and / or wireless signals within a particular geographic area. The cell may be further divided into cell sectors. For example, the cell sectors associated with the base station 114a may include The cell may be divided into three sectors. In one embodiment, the base station 114a ,As such, for example, it may include three transceivers, one for each sector of the cell. In one embodiment, the base station 114a is a multiple input multiple output (MIO) Multiple Output (MIMO) technology can be adopted, so that each section of the cell Multiple transceivers per data stream can be utilized.

[0126] The base station 114a communicates with one or more of the WTRUs 102a, 102b, and 102c over the air. The communication may be performed via the interface 115 / 116 / 117, and the air interface The sensors 115 / 116 / 117 may be any suitable wireless communication link (e.g., radio frequency (RF) o Frequency (RF), microwave, infrared (IR), ultraviolet (Ultraviolet The air interface 11 may be a wavelength of 1000 MHz or 1000 MHz. 5 / 116 / 117 may be constructed using any suitable radio access technology (RAT). can be done.

[0127] The base station 114b is one of the RRHs 118a and 118b and the TRPs 119a and 119b. and communicates with the above via wired or air interfaces 115b / 116b / 117b. The wired or air interface 115b / 116b / 117b may be any suitable Appropriate wired (e.g., cable or optical fiber) or wireless communication links (e.g., radio frequency Radiofrequency (RF), microwave, infrared (IR), ultraviolet (UV), visible light, centimeter wave, millimeter wave The air interface 115b / 116b / 117b may be any It can be built using any appropriate radio access technology (RAT).

[0128] RRH118a, 118b and TRP119a, 119b are d via air interface 115c / 116c / 117c. The air interface 115c / 116c / 117c may be any suitable wireless Communications links (e.g., radio frequency (RF), microwave, infrared (IR), ultraviolet (UV) ), visible light, centimeter wave, millimeter wave, etc.). Air interface 115c / 116c / 117c may be built using any suitable Radio Access Technology (RAT). can be done.

[0129] More specifically, as noted above, the communication system 100 may be a multiple access system. For example, Code Division Multiple Access (CDMA), Time Division Time Division Multiple Access (TDMA), Frequency Division Multiple Access (Freq Orthogonal Frequency Division Multiple Access (FDMA) Frequency Division Multiple Access (OFDMA), single carrier frequency division Single Carrier Frequency Division Multiple Access (SC-FDM) A) or more channel access schemes may be employed. For example, the RAN 103 / 104 / 105, the base station 114a and the WTRUs 102a, 102b, and 102c, or RRH118a, 118b and TRP in RAN103b / 104b / 105b 119a, 119b and WTRUs 102c, 102d are universal mobile communication systems. Universal Mobile Telecommunications System (UMTS) Terrestrial Wireless Access (T The LTE may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), and the Therefore, the air interface 115 / 116 / using Wideband CDMA (WCDMA) 117 or 115c / 116c / 117c, respectively. High-Speed ​​Packet Access (HSPA) and evolved HSPA (H HSPA is a high-speed downlink packet exchange (SPA) protocol. High-Speed ​​Downlink Packet Access (HSDPA) and high-speed uplink Packet access (High-Speed ​​Uplink Packet Access: HSUPA) can be included. Cut.

[0130] In one embodiment, the base station 114a and the WTRUs 102a, 102b, 102c, or or RRH118a, 118b and TRP1 in RAN103b / 104b / 105b 19a, 119b and WTRUs 102c, 102d are Evolved UMTS Terrestrial Radio Access ( The LTE-2000 may implement wireless technologies such as E-UTRA, which may be used to Air interface using LTE Solution (LTE) and LTE Advanced (LTE-A) Even if you build the 115 / 116 / 117 or 115c / 116c / 117c In the future, the air interfaces 115 / 116 / 117 will implement 3GPP NR technology. It may be disguised as

[0131] In one embodiment, the base station 114a and the WTRU in the RAN 103 / 104 / 105 102a, 102b, 102c, or RRH in RAN 103b / 104b / 105b 118a, 118b and TRP119a, 119b and WTRU102c, 102d. IEEE 802.16 (e.g. Worldwide Interoperability for Worldwide Interoperability for Microwave Access :WiMAX)), CDMA2000, CDMA2000 1X, CDMA2000 evolution Data Optimized (EV-DO), Interim Standard rd:IS)2000 (IS-2000), Interim Standard 95 (IS-95), Interim Standard 856 (IS-856), Global System for Mobile Communications Communications:GSM, Enhanced Data Rates for GSM for GSM Evolution:EDGE), GSM EDGE (GSM EDGE wireless access Wireless technologies such as GSM EDGE Radio Access Network (GERAN) may be implemented.

[0132] The base station 114c in FIG. 22 is, for example, a wireless router, a home node B, a home eNodeB, , or an access point, and may be a local area such as an office, home, vehicle, or campus. Any suitable RAT for facilitating wireless connectivity in the network may be utilized. In this embodiment, the base station 114c and the WTRU 102e communicate with each other using a wireless standard such as IEEE 802.11. Implementing line technology to create a wireless local area network (WLAN) In one embodiment, the base station 114c and the WTRU 10 may establish a WLAN. 2d implements wireless technologies such as IEEE 802.15 to create wireless personal area networks. A Wireless Personal Area Network (WPAN) may be constructed. In another embodiment, the base station 114c and the WTRU 102e may T (e.g. WCDMA, CDMA2000, GSM, LTE, LTE-A, etc.) As shown in FIG. 22, the base station 114 may be used to construct a picocell or a femtocell. b may be directly connected to the Internet 110. In this way, the base station 114c via the core network 106 / 107 / 109 to access the Internet 110 There is no need to.

[0133] RAN103 / 104 / 105 and RAN103b / 104b / 105b are core networks It can communicate with the core network 106 / 107 / 109. 9 is for voice, data, applications, and Voice over Internet Protocol (VoIP). WTRU102a, 10 2b, 102c, 102d, or any other type of network For example, the core network 106 / 107 / 109 may be a network for call control, Ring service, mobile location services, prepaid calling, Internet connection It also provides advanced security features such as user authentication, and provides connectivity and video streaming. It can be done.

[0134] Although not shown in FIG. 22, RAN103 / 104 / 105 and RAN103b / 104b / 105b and core network 106 / 107 / 109 are RAN 103 / 104 / 10 5 or RAN103b / 104b / 105b, or use a different RAT. It will be appreciated that the RAN may communicate directly or indirectly with other RANs. The access network 106 / 107 / 109 is a RAN1 that can use E-UTRA radio technology. Not only is it connected to RAN03 / 104 / 105 and RAN103b / 104b / 105b In addition, it may also communicate with another RAN (not shown) that employs GSM radio technology.

[0135] The core network 106 / 107 / 109 includes the WTRUs 102a, 102b, and 102c. , 102d, 102e are connected to the PSTN 108, the Internet 110, or other networks. It can also function as a gateway to access the PSTN 108 The circuit-switched telephone line that provides Plain Old Telephone Service (POTS) is The Internet 110 may include the telephone exchange network. Transmission Control Protocol (TCP) in the suite, User Datagram Protocol (UDP), Internet Protocol Interconnected networks that use common communication protocols such as the Internet Protocol (IP). A network may include a global system of computer networks and devices. Network 112 is a wired or wireless communication network owned or operated by another service provider. For example, the network 112 may include the RANs 103 / 104 / 105 and RAN 103b / 104b / 105b may use the same RAT or a different RAT. A core network may include another core network connected to one or more RANs.

[0136] Some of the WTRUs 102a, 102b, 102c, and 102d in the communication system 100 Or all may have multi-mode capabilities. 2c, 102d, and 102e are connected to different wireless networks via different wireless links. For example, the WTRU 102 shown in FIG. e includes a base station 114a that may employ cellular-based wireless technology, and an IEEE 802.11b wireless communication system. It may be configured to communicate with a base station 114c, which may employ wireless technology.

[0137] FIG. 23 illustrates a wireless transceiver (WTR), e.g., configured for wireless communication in accordance with embodiments described herein. FIG. 23 is a block diagram of an example of an apparatus or device such as U102. The WTRU 102 includes a processor 118, a transceiver 120, and a transmit / receive element 122. , a speaker / microphone 124, a keypad 126, and a display / touch panel 128, non-removable 130, removable memory 132, Power supply 134 and Global Positioning System (GPS) The WTRU may include a PS chipset 136 and other peripherals 138. 102 may include any subcombination of the above-described elements while remaining consistent with one embodiment. It will be understood that the base station 11 may include the above-mentioned option. 4a, 114b, and the nodes that the base stations 114a, 114b may represent (e.g., among others, Base Transceiver Station (BTS), Node B, Site Controller, Access Point (A P), Home Node B, Evolved Home Node B (eNodeB ), Home Evolved Node-B (HeNB), Home Evolved Node B Gateways, and proxy nodes, etc., are shown in Figure 23. It is contemplated that the present invention may include some or all of the elements shown and described herein. do.

[0138] The processor 118 may be a general purpose processor, a special purpose processor, a conventional processor, a digital Digital Signal Processor (DSP), multiple microprocessors one or more microprocessors, controllers, Controller, Application Specific Integrated Circuit (AS IC), Field Programmable Gate Array (Field Programmable Gate Array: FPGA (field programmable gate array) circuits, any other kind of integrated circuit (IC), state machine The processor 118 may be configured to enable operation of the WTRU 102 in a wireless environment. Signal coding, data processing, power control, input / output processing, and any other functions required for The processor 118 may be coupled to a transceiver 120. , the transceiver 120 may be coupled to the transmit / receive element 122. Although the processor 118 and transceiver 120 are shown as separate components, It will be appreciated that the transceiver 120 may be integrated into a single electronic package or chip. It will be possible.

[0139] The transmit / receive element 122 communicates with a base station ( For example, the base station 114a may be configured to transmit and receive signals to and from the base station 114b. In this embodiment, the transmit / receive element 122 may be an antenna configured to transmit and receive RF signals. In one embodiment, the transmit / receive element 122 may be, for example, an IR, UV, or UV-compatible. It may be an emitter / detector configured to transmit and receive visible light signals. In one embodiment, the transmit / receive element 122 is adapted to transmit and receive both RF and optical signals. The transmit / receive element 122 may be configured to transmit and receive any combination of wireless signals. It will be appreciated that the above configuration may be adopted.

[0140] Additionally, although the transmit / receive element 122 is illustrated in FIG. 23 as a single element, the WTRU The WTRU 102 may include any number of transmit / receive elements 122. More specifically, the WTRU 102 The WTRU 102 may employ MIMO technology. The 115 / 116 / 117 air interface is used for transmitting and receiving radio signals. The transmitter / receiver elements 122 (eg, multiple antennas) may be included.

[0141] The transceiver 120 modulates the signal that is transmitted by the transmit / receive element 122, As mentioned above, the WTRU 102 may be configured to demodulate the received signal. Thus, the transceiver 120 may be capable of transmitting the WTRU 102, e.g. Multiple RATs, such as UTRA and IEEE 802.11, can be used for communication. The transceiver may include:

[0142] The processor 118 of the WTRU 102 controls the speaker / microphone 124 and the keypad 126 and a display / touchpad / indicator 128 (e.g., an LCD Liquid Crystal Display (LCD) display unit or Organic Light Emitting Diode (OLED) c) A Light-Emitting Diode (OLED) display unit is connected to the The processor 118 can receive input data. The processor 118 can transmit the user data to the speaker / matrix. Microphone 124, keypad 126, display / touchpad / indicator 1 28. Additionally, the processor 118 may be configured to output a non-removable 130 or removable Access information from any type of suitable memory, such as removable memory 132, The non-removable memory 130 can also store data in a random access memory (RAM). Random-Access Memory (RAM), Read-Only Memory (ROM), It may include a hard disk, or any other type of storage device. 132 is a Subscriber Identity Module (SIM) card, memory This may include digital sticks, Secure Digital (SD) memory cards, etc. In one embodiment, the processor 118 is a processor, such as a server or a home computer. access information from memory on a computer (not shown) that is not physically located on the WTRU 102 The user may access the device and store data there.

[0143] The processor 118 may receive power from a power source 134 and may also receive power from other components within the WTRU 102. The power supply 134 may be configured to distribute and control power to the components of the The power supply may be any suitable device for providing power to the WTRU 102. The source 134 may include one or more dry cell batteries, solar cells, fuel cells, and the like.

[0144] The processor 118 may generate location information (e.g., longitude and The GPS chipset 136 may be configured to provide the GPS coordinates (latitude, The WTRU 102 may use GPS information in addition to, or instead of, the GPS chipset 136. In addition, the base stations (e.g., base stations 114a, 114b) communicate with the air interface 115 / Receive location information via 116 / 117 or receive signals from two or more nearby base stations. The WTRU 102 can determine its own location based on the timing of the received signal. , while remaining consistent with an embodiment, the location information may be determined by any suitable location determination method. It will be appreciated that it may be possible to obtain

[0145] The processor 118 may further be connected to other peripherals 138. Peripheral device 138 may include one or more software that provides additional features or functionality, or wired or wireless connectivity. For example, peripheral device 138 may include a , various sensors such as accelerometers and biometric (e.g., fingerprint) sensors, electronic compass (e-Comp ass), satellite transceiver, digital camera (for photo or video), universal serial Universal Serial Bus (USB) port or other interconnect interface devices, vibration devices, television transceivers, hands-free headsets, bluetooth Bluetooth (registered trademark) module, Frequency Modulated: FM) radio units, digital music players, media players, video game players It may include modules, internet browsers, etc.

[0146] The WTRU102 is ideal for sensors, consumer electronics, smart watches and smart clothing. Wearable devices such as gadgets, medical and eHealth devices, robotics, industrial Other equipment or devices, such as drones, cars, trucks, trains, aircraft, and other transportation equipment The WTRU 102 may be embodied in such an apparatus or device. Other components, modules, or systems of the system may include one of the peripherals 138. are connected via one or more interconnection interfaces, such as This may also be the case.

[0147] FIG. 24 is a system diagram of the RAN 103 and the core network 106 according to an embodiment. As mentioned above, the RAN 103 adopts UTRA radio technology to achieve the air interface. The WTRUs 102a, 102b, and 102c may communicate with each other via the interface 115. The RAN 103 may also communicate with a core network 106. As shown in FIG. The RAN 103 may include Node Bs 140a, 140b, and 140c. 40a, 140b, and 140c are connected to the WTRUs 102a, 102b, and 102c, respectively. 10. The wireless LAN device 100 may include one or more transceivers for communicating via the wireless LAN interface 115. Each of the Node Bs 140a, 140b, and 140c may be a particular The RAN 103 may be associated with a cell (not shown). While remaining consistent with an embodiment, the RAN 103 may further include any of the following: It will be appreciated that the system may include any number of Node Bs and RNCs.

[0148] As shown in FIG. 24, Node Bs 140a and 140b are capable of communicating with an RNC 142a. Additionally, Node B 140c can communicate with RNC 142b. RNCs 142a and 142b communicate with each other via an Iub interface. The RNCs 142a and 142b communicate with each other via the Iur interface. Each of the RNCs 142a and 142b can communicate with each other via the Each of the nodes B140a, 140b, and 140c may be configured to control the other nodes B140a, 140b, and 140c. Each of the RNCs 142a and 142b has an outer loop power control, a load control, an admission control, a packet scheduling, handover control, macro diversity, security functions, It may be configured to perform or support other functions, such as data encryption.

[0149] The core network 106 shown in FIG. 24 includes a media gateway (M GW) 144 and Mobile Switching Center (MSC) 146 and serving General Packet Radio Service (GPRS) Serving GPRS Support Node (SGSN) 148 and Gateway GPRS Support Node (GGSN) 150 Each of the above elements may include at least one of the following: Although illustrated as separate parts, none of these elements are part of the core network operator. It will be understood that the information contained herein may be owned and / or operated by entities other than the Company.

[0150] RNC 142a in RAN 103 communicates with the core network via the IuCS interface. The MSC 146 may be connected to the MGW 144. The MSC 146 and the MGW 144 may be connected to a circuit-switched network such as the PSTN 108. WTRUs 102a, 102b, and 102c to access the a, 102b, 102c and traditional fixed wired communication devices. Cut.

[0151] RNC 142a in RAN 103 communicates with the core network via the IuPS interface. The SGSN 148 may further be connected to a GGSN 148 in the network 106. The SGSN 148 and the GGSN 150 may be connected to the Internet 110. WTRUs 102a, 102b, 102c to facilitate communication between the WTRUs 102a, 102b, 102c and IP-enabled devices. It can be made smooth.

[0152] As mentioned above, the core network 106 may be owned and operated by other service providers. The network 112 may further include a wired or wireless network. .

[0153] FIG. 25 is a system diagram of the RAN 104 and the core network 107 according to one embodiment. As mentioned above, the RAN 104 employs E-UTRA radio technology to achieve The WTRUs 102a, 102b, and 102c can communicate with each other via the interface 116. The RAN 104 may also be in communication with a core network 107.

[0154] The RAN 104 may include eNodeBs 160a, 160b, and 160c. It should be understood that the eNodeB 4 may include any number of eNodeBs while remaining consistent with an embodiment. It will be understood that the eNodeBs 160a, 160b, and 160c each 02a, 102b, 102c via the air interface 116. In one embodiment, the eNodeB 160a, 160b, 160c may implement MIMO technology. WTRU 100a may, for example, use multiple antennas to transmit wireless signals to WTRU 102a, Radio signals can be received from here.

[0155] Each of the eNodeBs 160a, 160b, 160c is associated with a particular cell (not shown). This may be used for radio resource management decisions, handover decisions, uplink and downlink The system may be configured to handle user scheduling and other tasks. As shown in FIG. 5, the eNodeBs 160a, 160b, and 160c use the X2 interface. They can communicate with each other via this.

[0156] The core network 107 shown in FIG. 25 includes a mobility management gateway (MME) 16 2, a serving gateway 164, and a packet data network (Packet Data Each of the above elements can include a Core Network (PDN) Gateway 166. Although illustrated as part of the core network 107, none of these elements are part of the core network. It is understood that such information may be owned and operated by entities other than the network operator. There will be.

[0157] The MME 162 communicates with the eNodeB 160a in the RAN 104 via the S1 interface. , 160b, 160c, and may function as control nodes. For example, the MME 162 performs authentication of users of the WTRUs 102a, 102b, and 102c, bearer Activation / deactivation of WTRUs 102a, 102b, and 102c, initial attack The MME 162 may be responsible for selecting a specific serving gateway during the call. , and further comprising a RAN 104 and other RANs using other wireless technologies such as GSM and WCDMA. (not shown) may provide a control plane function for switching between

[0158] The serving gateway 164 communicates with the RAN 104 via the S1 interface. The serving gate may be connected to each of the eNodeBs 160a, 160b, 160c. The way 164 generally transmits user data packets to the WTRUs 102a, 102b, 102c, and 102d. c. The eNodeB gateway 164 further controls user play during handover between eNodeBs. anchoring, WTRUs 102a, 102b, and 102c can use downlink data Triggering paging when possible, and the contention of WTRUs 102a, 102b, and 102c It may perform other functions, such as managing and storing text.

[0159] The serving gateway 164 may further be connected to a PDN gateway 166. Typically, the PDN gateway 166 is a gateway that connects a packet-switched network such as the Internet 110. WTRUs 102a, 102b, and 102c to access the a, 102b, 102c and IP-enabled devices.

[0160] The core network 107 may facilitate communication with other networks. For example, the core network 107 provides access to a circuit-switched network such as the PSTN 108. WTRUs 102a, 102b, and 102c. , 102c and traditional fixed wired communication devices. The core network 107 is an interface between the core network 107 and the PSTN 108. IP gateways that act as interfaces (for example, IP Multimedia Subsystems ( It may contain or communicate with an IP Multimedia Subsystem (IMS) server. In addition, the core network 107 may include wireline or other networks owned and operated by other service providers. The WTRU 102 provides access to a network 112, which may include a wireless communication network. a, 102b, and 102c.

[0161] FIG. 26 is a system diagram of the RAN 105 and the core network 109 according to one embodiment. The RAN 105 uses IEEE 802.16 wireless technology to an access server that communicates with the WTRUs 102a, 102b, and 102c via an interface 117; It may also be an Access Service Network (ASN), as discussed further below. As shown in FIG. 1, the WTRUs 102a, 102b, and 102c, the RAN 105, and the core network The communication links between different functional entities with the network 109 can be defined as reference points. can.

[0162] As shown in FIG. 26, the RAN 105 includes base stations 180a, 180b, and 180c and an ASN gateway. While remaining consistent with an embodiment, the RAN 105 may include a gateway 182. It will be appreciated that the base station may include any number of base stations and ASN gateways. 180a, 180b, and 180c are each associated with a particular cell within the RAN 105. The WTRUs 102a, 102b, 102c may be connected to each other via an air interface 117. c. The base stations 180a, 180b, 180c may implement MIMO technology. The base station 180a may, for example, use multiple antennas to transmit wireless signals to the WTRU 102a. The base stations 180a, 180b, 180c, and 180d can transmit and receive radio signals from each other. c also handles handoff triggering, tunnel establishment, radio resource management, traffic It provides mobility management functions such as network classification and Quality of Service (QoS) policy enforcement. The ASN gateway 182 can act as a traffic aggregation point. It provides services such as paging, caching of subscriber profiles, and routing to the core network 109. It can control things like ting.

[0163] Air interface 1 between WTRUs 102a, 102b, 102c and the RAN 105 17 can be defined as the R1 reference point that implements the IEEE 802.16 specification. In addition, each of the WTRUs 102a, 102b, and 102c communicates with the core network 109. A management interface (not shown) may be constructed for the WTRUs 102a, 102b. , 102c and the core network 109 for authentication, authorization, Define an R2 reference point that can be used for IP host configuration management and mobility management. It is possible.

[0164] The communication link between each of the base stations 180a, 180b, 180c is defined by a WTRU between the base stations. R8 was established as a reference point, including protocols to facilitate handover and data transfer. The base stations 180a, 180b, and 180c and the ASN gateway 182 The communication link between the WTRU and the WTRU may be defined as the R6 reference point. Mobility events associated with each of the mobility events 02a, 102b, and 102c are The protocol may include protocols to facilitate security management.

[0165] As shown in FIG. 26, the RAN 105 may be connected to a core network 109. 105 and the core network 109, e.g., for data transfer and mobility. R3 can be defined as a reference point that includes protocols for promoting information security management capabilities. The core network 109 includes a Mobile IP Home Agent (MHA). ent:MIP-HA)184 and Authentication, Authorization, Accounting The system may include an Authentication, Authorization, and Accounting (AAA) server 186 and a gateway 188. Although each of the above elements is illustrated as part of the core network 109, None of these elements are owned or operated by an entity other than the core network operator. It will be appreciated that this may also be done.

[0166] The MIP-HA can manage IP addresses and 02c allows roaming between different ASNs and different core networks The MIP-HA184 can be used in packet-switched networks such as the Internet 110. WTRU 102a, 102b, and 102c to access the , 102b, 102c and IP-enabled devices. The server 186 may be responsible for user authentication and support of user services. The Thruway 188 can facilitate interworking with other networks. For example, the gateway 188 may provide access to a circuit-switched network such as the PSTN 108. WTRUs 102a, 102b, and 102c. , 102c and traditional fixed wired communication devices. , the gateway 188 may communicate with wired or wireless communications networks owned and operated by other service providers. The WTRUs 102a, 102b may access the network 112, which may include a , 102c.

[0167] Although not shown in FIG. 26, the RAN 105 may be connected to other ASNs, forming a core network. It will be understood that the network 109 may be connected to other core networks. The communication link between AN105 and other ASNs can be defined as an R4 reference point, and R The four reference points are the WTRUs 102a, 102b, 102c between the RAN 105 and other ASNs. The core network 109 may include a protocol for coordinating the mobility of the The communication links between the R5 and other core networks can be defined as R5 standards, The standard provides interworking between home and visited core networks. A protocol for facilitating this may be included.

[0168] The core network entities described herein and shown in Figures 22, 24, 25 and 26 Entities are identified by the names given to those entities in certain existing 3GPP specifications. However, these entities and functionality may be identified by other names in the future. The specific entities or functionality are defined in the 3GPP NR specifications published by 3GPP. It is understood that these specifications may be combined in future specifications, including The specific network entities and functionality described and illustrated in Figures 22 to 26 are merely The subject matter disclosed and claimed herein is presented by way of example only and is not intended to be limiting unless expressly stated herein. "embodied or implemented in any similar communication system now or hereafter defined" It is understood that this may also be done.

[0169] FIG. 27 illustrates, for example, the configuration of a particular node or functional entity within the RAN 103 / 104 / 105. , Core Network 106 / 107 / 109, PSTN 108, Internet 1 10, or other networks 112, as shown in FIGS. An exemplary computing system 9 that may embody one or more devices of the network 0. Computing system 90 is a computer or server and may be controlled primarily by computer readable instructions. The instructions may be in the form of software, which may be located anywhere or at any Such computer-readable The instructions that can be executed within the processor 91 operate the computing system 90. The processor 91 may be a general-purpose processor, a special-purpose processor, a conventional processor, Digital Signal Processors (DSPs), multiple microprocessors, DSP cores and related one or more microprocessors, controllers, microcontrollers, application specific Application-Specific Integrated Circuits (ASICs), Field Programmable Gate Array (FPGA) circuits, The processor 91 may be any other type of integrated circuit (IC), state machine, etc. Signal coding and / or other features that enable the computing system 90 to operate within a communications network. It can perform data processing, power control, input / output processing, and any other functions. Co-processor 81 may perform additional functions separate from main processor 91. , or an optional processor that assists processor 91. At least one of the processor 81 and the coprocessor 82 is related to the method and apparatus disclosed herein. The system can receive, generate, and process data.

[0170] In operation, the processor 91 fetches, decodes, and executes instructions to perform computing Between other resources via the system bus 80, which is the system's main data transfer path. Such a system bus transfers information to and from the components within the computing system 90. The system bus 80 connects the elements and provides a medium for data exchange. A data line for sending an address, an address line for sending an interrupt, The system bus includes control lines for receiving data and for operating the system bus. An example of a 80-segment chip is the Peripheral Component Interconnect (PCI). :PCI) bus.

[0171] The memories connected to the system bus 80 include a random access memory (RAM) 82 and A read-only memory (ROM) 93 is included. Such memory stores and reads information. ROM 93 generally contains circuitry that allows the user to read data that is not easily modified. The data stored in the RAM 82 is then read by the processor 91 or other hardware. The RAM 82 and ROM 9 can be read or changed by the hardware device. Access to at least one of the three may be controlled by the memory controller 92. The memory controller 92 converts the virtual addresses into physical addresses as instructions are executed. The memory controller 92 can provide an address translation function to convert the address into 2. Isolate each process in the system and isolate system processes from user processes. It can provide memory protection. Therefore, programs running in the first mode can only access memory that is mapped by its own process virtual address space. Unless memory sharing between processes is configured, virtual It is not possible to access memory within a virtual address space.

[0172] Further, the computing system 90 may be configured to receive instructions from the processor 91 and to 94, keyboard 84, mouse 95, and disk drive 85. The device may include a peripheral controller 83 that controls communication.

[0173] The display 86 controlled by the display controller 96 is It is used to display visual output generated by the input system 90. Such visual output may include text, graphics, animated graphics, and video. The visual output is displayed as a Graphical User Interface. The display 86 may be a cathode ray tube (Cathode-Ray T CRT-based video displays, LCD-based flat panel displays This is implemented using a gas plasma-based flat panel display or touch panel. The display controller 96 controls the video signals sent to the display 86. The NI PXIe-4111 contains the electronic components necessary to generate the signal.

[0174] Further, the computing system 90 includes the RAN 103 / 104 of FIG. / 105, Core Network 106 / 107 / 109, PSTN 108, Internet 110, or other networks 112. For example, a network adapter 97 may be used to connect the and other communications circuitry, such that the computing system 90 to communicate with other nodes or functional entities of these networks. The communications circuitry may be used alone or in conjunction with the processor 91 to implement the functions described herein. Execute the sending and receiving steps of the particular device, node, or functional entity specified It is possible.

[0175] Any or all of the devices, systems, methods, and processes described herein may include: When the instructions are executed by a processor, such as processor 118 or 91, the A computer-readable medium for causing a processor to execute or implement the described systems, methods, and processes. in the form of computer executable instructions (e.g., program code) stored on a readable storage medium In particular, it is understood that the steps, acts, and or any of the functions are configured for wireless and / or wired network communication. Such a computer program executed on the processor of the device or computing system The computer-readable storage medium may be implemented in the form of computer-executable instructions. Volatility implemented in any non-transitory (e.g., tangible or physical) method or technology for This includes, but is not limited to, volatile and non-volatile, removable and non-removable media. A computer-readable storage medium does not include a signal. AM, ROM, Electrically Erasable Programmable ROM EEPROM), flash memory or other memory technologies, compact disc ROM ( Compact Disc ROM: CD-ROM, Digital Versatile Disc Disc: DVD) or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk disk storage, or other magnetic storage device, or to store desired information and can be accessed by a computing system. This includes, but is not limited to, any other tangible or physical medium.

[0176] appendix

[0177] [Table 1-1] [Table 1-2] [Table 1-3]

[0178] [Table 2]

[0179] [Table 3]

[0180]

Table 4

[0181]

Table 5

[0182]

Table 6

[0183]

Table 7

[0184]

Table 8

Claims

1. An apparatus comprising a processor, a memory, and a communication circuit, the apparatus comprising: The device is connected to a network via a path, and the device is configured to store the When executed by the processor of the device, receiving network assistance information; determining uplink channel access based at least in part on the network assistance information; determining the procedure for Executing the uplink channel access procedure to access the uplink channel And, After accessing the uplink channel, the uplink transmission is performed on the uplink channel. To carry out the faith, The apparatus further comprises computer executable instructions to cause the apparatus to perform operations including:

2. The apparatus of claim 1 , wherein the network assistance information includes a channel access type. .

3. The channel access type is a set of channel access types stored in the device. are selected from the The device is adapted to select the set of channel access types and the set of channel access procedures. one or more channel access procedures are comprised of a set of associated with each of the channel access types in the set of types; The channel access procedure is a listen-before-talk (LBT) procedure. ) The apparatus according to claim 2 .

4. One or more of the channel access procedures include a random backoff.

4. The apparatus according to claim 3.

5. The random backoff function of one or more of the channel access procedures may be at least 5. The apparatus of claim 4, wherein the at least one setting is determined at least in part by a default configuration.

6. The random backoff function of one or more of the channel access procedures, The apparatus of claim 5 further dependent, at least in part, on the alternative configuration.

7. The network assistance information is provided via layer 1 signaling or higher layer signaling. The device of claim 1 , wherein the device is signaled.

8. The network support information includes: Medium Access Control Element (MACE) AC CE), or Radio Resource Control (RRC) Messaging The apparatus of claim 7, wherein the signaling is via

9. The network assistance information is Downlink Control Information (DCI).

8. The apparatus of claim 7, wherein the QoS control information (DCI) is signaled via a QoS control information (DCI).

10. The DCI is a Cell Radio-Network Temporary Identifier (CRI). Network-assisted Radio Network Temporary Identifier (C-RNTI) or Network-assisted Radio Network Temporary Identifier (Ne Assistance Radio Network Temporary Identifier (NA-RNTI) 10. The apparatus of claim 9, wherein the signal is scrambled by

11. The DCI is a Physical Random Access Channel (PRACCH). A control resource set (Control Resource Set: PRACH) that precedes the set of PRACH resources.

10. The apparatus of claim 9, wherein the signal is received in a Core Set (CORESET).

12. The CORESET is a physical downlink control channel (PDC). The apparatus of claim 11 , further comprising a PDCCH (Personal Data Channel) common search space.

13. The PDCCH common search space is a type 0 or type 1 PDCCH common search space. The apparatus of claim 12 .

14. 2. The method of claim 1, wherein the uplink transmission corresponds to a random access preamble transmission. The equipment.

15. The network assistance information and the random access preamble are A request received by the device within a Channel Occupancy Time (COT).

15. The apparatus of claim 14.

16. The uplink channel access procedure is a random access procedure, and the operation includes: The network assistance information and a trigger for performing the uplink channel procedure. receiving a physical downlink control channel (PDCCH) command including: performing the uplink channel procedure in accordance with the trigger; and The apparatus of claim 1 further comprising:

17. the uplink channel access procedure is a random access procedure, The network assistance information is received from a target wireless network access point. And, The operation includes: A handover command is received from the source wireless network access point. And, and performing the uplink channel procedure according to the network assistance information. The apparatus of claim 1 , further comprising:

18. The operation includes: a random access request including the network assistance information and an uplink grant; The method of claim 1, further comprising receiving a Random Access Response (RAR). The equipment.

19. The network assistance information is signaled as a field in the RAR uplink grant.

20. The apparatus of claim 18, wherein the

20. The network assistance information is stored in the Media Access Control (MAC) payload of the RAR.

20. The apparatus of claim 18, wherein the information is signaled as a field within a

Images